MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Corrosion Behavior of Glass Coated Hastelloy-XR in Boiling Sulfuric Acid
Rong TuTakashi GotoLidong ChenToshio HiraiLianmeng Zhang
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2001 Volume 42 Issue 10 Pages 2093-2097

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Abstract

Hastelloy-XR alloy was coated with glasses to improve the corrosion resistance in boiling sulfuric acid for application in thermochemical hydrogen production process. Pre-oxidation of Hastelloy-XR alloy enabled one to produce well-adhered glass coating. The glass composition with the highest corrosion resistance was 48SiO2–8B2O3–6Al2O3–11CaO–25BaO–2ZnO . The glass-coated Hastelloy-XR alloy showed almost no mass change in boiling sulfuric acid of 40 to 80% aqueous solution at 408 to 503 K after 43 ks.

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© 2001 The Japan Institute of Metals and Materials
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